我一直很好奇，女生天天嘴里喊的“安全感”到底为何物。是伸手即来的支配感还是欲望的满足感？我总有一种感觉，那是想得到更多，但是又怕什么都得不到，得到了又不满足现状想要更好的赶脚。

男研究生情况可能也差不多

Thank you for your report.
You are telling the truth.

Normally speaking, female wants to find a stronger.
Her high degree screens a lot of excellent candidates.
Meanwhile, her best time is invested in academic load.
The effective time to search, identify and verify is very limited.

The uncertainty sounds reasonably.
We need to figure out a way to solve it.